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Updated: May 21, 2025

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging
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在Fontan患者中使用零回声时间序列测量肺密度.

Alessia Callegari1,2,3, Konstantinos Zeimpekis4, Barbara E U Burkhardt5,6

  • 1Pediatric Heart Center, University Children's Hospital Zurich, Zurich, Switzerland. alessia.callegari@kispi.uzh.ch.

Pediatric cardiology
|March 19, 2025
PubMed
概括

使用ZTE序列的肺部MRI可以识别Fontan患者的肺部变化. 肺与背景比率 (LBR) 的升高与特定的生物标志物和病史相关,有助于评估结果.

关键词:
生物标志物 生物标志物在Fontan流通的流通.肺的密度 肺的密度磁共振成像技术 磁共振成像技术一个单心室单心室.

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科学领域:

  • 心脏病学 心脏病学
  • 放射学 放射学是一门学科.
  • 肺部病理学 肺部病理学

背景情况:

  • 肺部并发症是Fontan息后的一个已知的问题.
  • 心脏MRI是Fontan患者随访的标准,评估心室功能和血液动力学.
  • 肺部MRI还没有经常被整合到Fontan患者成像随访中进行肺部评估.

研究的目的:

  • 研究肺部MRI的实用性,特别是零回声时间 (ZTE) 序列,用于评估Fontan手术后儿童的肺部状况.
  • 在Fontan患者中评估肺密度 (通过肺与背景比率,LBR) 和各种临床,血液动力学和生物标志物参数之间的关联.

主要方法:

  • 零回声时间 (ZTE) 的MRI序列用于测量32名患有Fontan息的儿童的肺与背景比率 (LBR).
  • 患者根据LBR (>1.5 vs. <1.5) 进行分组.
  • 分析了LBR与心室功能,纤维化,血液动力学,生物标志物,螺旋计和先前导管检查结果之间的关联.

主要成果:

  • 升高的LBR (>1.5) 与细胞外体积 (ECV) 的增加和TIMP-1,sST-2,白蛋白和前热血素时间水平的降低显著相关.
  • 在LBR升高的患者中观察到GDF-15降低的趋势.
  • 患有LBR> 1.5的患者在Fontan/Glenn前有更高的肺动脉压和静脉静脉附带栓塞的病史.

结论:

  • 使用ZTEMRI序列监测肺密度显示了作为Fontan手术患者随访的诊断工具的潜力.
  • 肺部MRI可能有助于评估长期结果,并确定标准心脏成像无法捕捉到的肺部变化.